Data transmission system including encoder and a clock recovery system for display device, data transmission method for display device and display device

Abstract

A display device includes an encoder having at least one translation table, and encoding m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data on a basis of the at least one translation table; a clock recovery circuit configured to recover a clock from the data encoded by the encoder; a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; an output driver configured to output a voltage in accordance with the data decoded by the decoder; and a display element having a pixel applied with the voltage.

The invention claimed is: 
     
       1. A display device comprising:
 an encoder having at least one translation table, and encoding m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data on a basis of the at least one translation table; 
 a clock recovery circuit configured to recover a clock from the data encoded by the encoder; 
 a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; 
 an output driver configured to output a voltage in accordance with the data decoded by the decoder; and
 a display element having a pixel applied with the voltage, 
 
 wherein, in the at least one translation table, a larger an amplitude of the voltage of a bit pattern in 2 m  pieces of bit patterns of the m bits of the data, a larger a data change index of the bit pattern which is assigned to the bit pattern in the 2 m  pieces of bit patterns in 2 n  piece of bit patterns of the n bits of the data, 
 wherein the at least one translation table is only one translation table for a normally first color mode or for a normally second color mode. 
 
     
     
       2. The display device according to  claim 1 , further comprising:
 a data generating circuit configured to convert the data inputted to the encoder in accordance with a first display mode signal. 
 
     
     
       3. The display device according to  claim 2 , further comprising:
 a data converter configured to convert the data outputted from the decoder in accordance with a second display mode signal. 
 
     
     
       4. The display device according to  claim 1 , further comprising:
 a data converter configured to convert the data outputted from the decoder in accordance with a display mode signal. 
 
     
     
       5. The display device according to  claim 4 , further comprising:
 a data generating circuit configured to convert the data inputted to the encoder in accordance with another display mode signal. 
 
     
     
       6. The display device according to  claim 1 , wherein the encoder includes a first translation table for the normally first color mode as the at least one translation table, and in the first translation table, a larger a data value of the bit pattern in the 2 m  pieces of bit patterns of the m bits of the data, a larger a data change index of the bit pattern which is assigned to the bit pattern in the 2 m  pieces of bit patterns in the 2 n  pieces of bit patterns of the n bits of the data. 
     
     
       7. The display device according to  claim 1 , wherein the encoder includes a second translation table for the normally second color mode as the at least one translation table, and in the second translation table, a smaller a data value of the bit pattern in the 2 m  pieces of bit patterns of the m bits of the data, a larger a data change index of the bit pattern which is assigned to the bit pattern hi the 2 m  pieces of bit patterns in the 2 n  pieces of bit patterns of the n bits of the data. 
     
     
       8. The display device according to  claim 3 , further comprising:
 a first register configured to store the first display mode signal; and 
 a second register configured to store the second display mode signal. 
 
     
     
       9. The display device according to  claim 3 ; wherein the first and the second display mode signals comprise signals indicating the normally first color mode or the normally second color mode. 
     
     
       10. The display device according to  claim 1 , further comprising:
 a parallel-to-serial converter configured to subject the encoded data outputted from the encoder to a parallel-to-serial conversion; and 
 a serial-to-parallel converter configured to subject the data outputted from the parallel-to-serial converter to a serial-to-parallel conversion. 
 
     
     
       11. The display device according to  claim 1 , wherein the encoder includes a first translation table for the normally first color mode as the at least one translation table, a larger a data value of the bit pattern in the 2 m  pieces of bit patterns of the m bits of the data, a larger a data change index of the bit pattern which is assigned to the bit pattern in the 2 m  pieces of bit patterns in the 2 n  pieces of bit patterns of the n bits of the data. 
     
     
       12. The display device according to  claim 1 , wherein the encoder includes a second translation table for the normally second color mode as the at least one translation table, and in the second translation table, a smaller a data value of the bit pattern in the 2 m  pieces of bit patterns of the m bits of the data, a larger a data change index of the bit pattern which is assigned to the bit pattern in the 2 m  pieces of bit patterns in the 2 n  pieces of bit patterns of the n bits of the data. 
     
     
       13. The display device according to  claim 5 , further comprising:
 a first register configured to store the display mode signal; and 
 a second register configured to store the another display mode signal. 
 
     
     
       14. The display device according to  claim 5 , wherein the display mode signal and the another display mode signal comprise signals indicating the normally first color mode or the normally second color mode. 
     
     
       15. The display device according to  claim 3 , further comprising:
 a parallel-to-serial converter configured to subject the encoded data outputted from the encoder to a parallel-to-serial conversion; and 
 a serial-to-parallel converter configured to subject the data outputted from the parallel-to-serial converter to a serial-to-parallel conversion. 
 
     
     
       16. The display device according to  claim 2 , wherein the data generating circuit converts the data by either regularly converting or inversely converting the data. 
     
     
       17. The display device according to  claim 1 , wherein the display element includes a plurality of pixels for receiving the voltage. 
     
     
       18. The display device according to  claim 1 , wherein said voltage comprises a gray scale voltage. 
     
     
       19. The display device according to  claim 1 , wherein the normally first color mode comprises a black mode, and the normally second color mode comprises a white mode. 
     
     
       20. A display device comprising:
 a translation table configured to encode m (m is a natural number) bits of a data to n (n is a natural number and n>m) bits of a data; 
 a clock recovery circuit configured to recover a clock from the data encoded with the translation table; 
 a decoder configured to decode the n bits of the encoded data to the m bits of the data in accordance with the clock recovered by the clock recovery circuit; 
 an output driver configured to output a voltage in accordance with the data decoded by the decoder; and 
 a display element having a pixel applied with the voltage, 
 wherein, in the translation table, a value of an amplitude of the voltage of a bit pattern in 2 m  pieces of bit patterns of the m bits of the data, is proportional to a value of a data change index of the bit pattern which is assigned to the bit pattern in the 2 m  pieces of bit patterns in 2 n  piece of bit patterns of the n bits of the data, 
 wherein the translation table is only one translation table for a normally first color mode or for a normally second color mode.